Matrix-setting and type-line-casting machine



Dec. 26, 1933- J. DORNETH MATRIX-SETTING AND TYPE-LINE-CASTING MACHINE Filed March 14, 1933 Patented Dec, 26,193

; MATRIX-SETTING ANDJrYPE-Lmlrg CASTING MACHINE 7 Julius Dorneth, Kcm-adshohe, near Berlin-,Tegel,

- Germany, assignor to the firm G, lm. b. 1 1., Berlin, Germany v Application March .14, 1933, Serial No. 660,733, andin Germany August2 2,. 1931 Typograph f s claims.- (01. 199-4) liev'ed from the pressure of the stationary matrix This invention. relatesto a matrix release device for matrix-settingiandtype-line-casting ma- .chines with matrix'bars suspended on wires. 1 The new release device is moreparticularly suitable "5 for machines in which-the-matrices are guided in a closed circuit, and-therefore the matrixbars to be. distributed, which are in motion, drop behind thestationary ones in the magazine the whole weight of the matrix bars hangingsin the magazine and tending to fall downwards being supported by the stop mechanisms; Theznew release device owing to its simple and strong con,- j struction can, however, be also used with. advantage in the well;known-setting-machines with- I levers knownin these latter machinesand-receiving betweenthem .the;..eyeof the. matrix bar which is first at that time, forstopping orire- 'ing parts at the bottom endof therelease lever;

leasing the "matrices, .has proved unfavourable in setting machines .provided with matrix circuit. In these release devices-the barsremaining behind; in the position of resttareas a'rule-pusheli back also during the "release of the "foremost matrix, whilst .eachieleasedmatrix starts movthe actionof gravity; This produces'an'unsteady falling of the released matrices, a heavyworking of the stop'mechanism' and. considerable wear and tear of. the sama'so that loosening and-bending are' li'ableto occur, which loosening and bending are frequentlythe causeof failure 'to release or ing stillv in the magazine, and therefore are notv ;.exposed.'to any. strains. H i

The present invention avoidsfthese drawbacks in a simple and reliable manner by impartingjto thele'yefof the-released matrix bar, at the morecess inlthe block l sathat the lever 2 hasrement of its release, a shock, that is to say, an initial acceleration, in the direction of its sliding along the guide wire, whilst the matrices remaining behind the. stop mechanism are not moved. Moreover, care is taken to ensure by a suitable construction that only one matrix bar shall be released at each release movement of the device, whilst by means of a suitable support, the bearings of the stop mechanism are also re- :sliding down of the matrix justreleased out matrix circulation; The use. of the bifurcated ing on the inclined guide :wire exclusively'under bars behind it, and thefrictional resistances produced during the movement of the stop mechanism, are reduced to-a minimum.

'Two constructions of the new release devices are shown by way .of example in the accompanyingdrawing, inwhich:

Figurel'is an elevation of thedevice in its initial position;

Figure 2 is .a similar view, but with-the device in the release position;. f

' Figure 3. is aside elevation ofFigure 2, the being also indicated; 7 Q

Figure-4 shows in elevation another construction of the device}. 2'

Figure 5 isa side elevation of Figure 4; T Figure 6 shows on an-zenlarged scale thelo'ck- Figure 7 is a section on line VIIFVII" of Figure on the-guide wire, and: g

Figures-8a to 8dshow on an enlargedscale the various phases of the release process. The device comprises'a block l securedto the machine frameand a. releaselever 2 whichis ,mountedso that it-can rotate to a limited extent about a pin:3 securedt'o theblock 1., The lever- ,2 is controlled by thejaction ofa springl'which tends to keep it in its position of rest.

With the upper end of the release lever 2 engages a pull wire 5 leading ,-to thekeys (not shown). .The lateral movement of the lever 2 is limited by a pin 6 secured to the block 1, which pin projectsinto an aperture '7 of largerdiameter in thelever 2. In order toreduce the frictional resistance during the movement of therelease lever 2 which is pressed by the stationary matricesgagainst the block .1, and in order to relieve at the same time the pivot pin 3, the. block 1 is carried down-to the bifurcated bottom end of the release lever 2, and provided at the lowermost pointwith a separate,engagement'face 8-(Figuresjl'toi 3:); -A; similariengagement face is, provided around the pivot pin 3,: and both engagemerit-faces" are separated from eachotherby a the lever'2 is bifurcated so as to form two parts 12 and 13. One part 12 is situated in the extenslon of the lever 2, and the other part 13 is cranked or bent out towards the stationary matrices. The part 12 is given a prismatic shape, and the cranked part 13 has the wedge-shaped form indicated in Figures 6, "I and 8. The front edge of the part 13 facingthe matrices is made sharp like a knife, whilst its side away from the matrix eyes is equal to the full thickness of the release lever 2. The dimensions are calculated in such a manner that the eye of a single matrix bar just fits into the gap 14 between the parts 12 and 13.

On a key being depressed, the lever 2 is turned by means of the pull wire about the pin 3 from its position of rest (Figure 1) to the working position (Figure 2), one matrix bar being thereby released. During this release movement of the lever 2, the oblique inner surface 18 formed by the wedge shaped part 13, imparts to the matrix 16 to be released, at the moment of its release, an initial acceleration in the direction ofits sliding along the guide wire 17 (see Figures 8a to 8d). The straight surface of the part 13, facing the matrix bars not to be released, extends according'to the invention parallel to the matrix eyes so that duringthe process of release, the matrix bars situated behind it, are not moved.

- 'After'the release of a matrix bar, the lever 2 is returned to its position of rest (Figure 1) by the spring 4, the fork part 13 releases the matrices held back which now slide down to an extent equal to the width of a matrix bar on the sliding Wire 17, so that theforemost matrix again engages with the part 12 which is in its position of rest (Figure l) and fills up the gap 14.

Having now fully described the said invention what is claimed and desired to be secured by Letters Patent is:

l. A matrix release device for matrix-setting and type-line-casting machines of the type having matrix bars guided and suspended on wires, including a pivotally mounted resiliently controlled forked member normally arranged ad- 'jacent'each of the wires and including twolimbs one of which acts to stop the movement of the matrix bars thereon while the other limb is offset therefrom and wedge-shaped for engaging and separating only the foremost matrix bar and imparting an initial movement thereto as it is released upon the swinging of said member whilst the matrix bars left behind the release device are not moved. 1

2. A matrix release device for matrix-setting and type-line-casting machines having matrix bars provided with eyes and guided and suspended on wires, the foremost matrix barof which at 'any time isstopped or released, said device including a block fixed-to the frame of the machine, a lever pivotally mounted for limited movement .on the block having one end "forked for engagement with the eye of the foremost matrix bar,a spring for normally holding the lever in a position to prevent movement of the matrix'bars, one limb of the forked end of the said lever engaging between the first and the against which ball rests the-bottom end ofthe second matrix and being formed into a wedge with the back surface parallel to the matrix eyes,- so that the forked end of the lever seizes at each release movement only one matrix eye and imparts to it an initial acceleration in the direction of its sliding along the guide wire, whilst the matrix bars left behind the release device are not moved.

1 3. A device as claimed in claim 2, wherein the limb of the forked end of the lever preventing in the position of rest the sliding down of the matrix bars suspended in the magazine, is in the sameplane as the lever, whilst the other limb keeping back in the working position the nonreleased stationary matrices inthe magazine, is bent out of the plane of the lever towards the magazine in the form of a hook in such a manher that a gap sufficient to receive the eye of only and starts'the movement of the matrix to be released. 7 2

7 5. A device as claimed in claim 2, wherein the lever is provided with an opening and a pin carried by the'block and of less diameter than the opening and projectinginto the larger opening for thepurpose of limiting the lateral deflection of the said lever.

6. A device as'claimed in claim 2, wherein a support is provided at the bottom end of the 11 block immediately about the forkfor relieving the bearing of the lever from the pressure of'the matrix bars suspended behind the fork.

'7. A "device as claimed in claim 2, wherein a support is provided at'the bottom end of the 1 block immediately above the fork for relieving the bearing of the leverfrom'the pressure ofthe matrix bars suspendedbehind the fork, and said block being provided between said support-and the pivot point of the lever with a recess for the i purpose of reducing the friction produced during the movement of the lever.

8. A device as claimed in claim 2, wherein a support is provided-at the bottom end of the block immediately above the fork for relieving thei 'gg bearing of the lever from the pressure of the matrix bars suspended behind the fork, and said support being also provided withmeans for further reducing friction and of facilitating the movement or the release :lever, in the form of a51 ball bearing which comprises arecess provided in the block and a steel ball mounted .the said recess in an easily movable manner, and

lever. 4.0

JULIUS DORNETH. 

